/// <summary>
/// 运算器
/// </summary>
class Operator
{
    int x;
    int y;
    /// <summary>
    /// 加法，可参考<see cref="Operator"/>
    /// </summary>
    /// <param name="x">加数</param>
    /// <param name="y">加数</param>
    /// <returns>和</returns>
    /// <seealso cref="add"/>
    /// <example>
    /// <code>
    /// Operator op = new Operator();
    /// op.x = 1;
    /// op.y = 2;
    /// Console.WriteLine(op.add());
    /// </code>
    /// </example>
    /// <exception cref="add"></exception>
    /// <remarks>
    /// 2024年11月25日17:14:31
    /// </remarks>
    public int add()
    {
        return x + y;
    }
}